package com.chen.utils;

import com.chen.pojo.Content;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;

import org.jsoup.select.Elements;
import org.springframework.stereotype.Component;
import java.io.IOException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;


@Component
@SuppressWarnings("all")
public class HtmlParseUtil {
    public static void main(String[] args) throws IOException {
        new HtmlParseUtil().pareseJD("java").forEach(System.out::println);
    }

    public List<Content> pareseJD(String keywords) throws IOException {
        String url = "https://search.jd.com/Search?keyword=" + keywords;
        //解析网页
        Document document = Jsoup.parse(new URL(url), 3000);  //就是返回的js页面对象
        Element element = document.getElementById("J_goodsList");
        //获取所有的li元素  标签
        Elements elements = element.getElementsByTag("li");
        ArrayList<Content> goodsList = new ArrayList<>();
        //获取元素中的内容 el就是每一个li标签  attr获取属性  eq(0)获取第一个  text文档
        for (Element el : elements) {
            String img = el.getElementsByTag("img").eq(0).attr("data-lazy-img");
            String price = el.getElementsByClass("p-price").eq(0).text();
            String title = el.getElementsByClass("p-name").eq(0).text();
            Content content = new Content();
            content.setTitle(title);
            content.setImg("https://"+img);
            content.setPrice(price);
            goodsList.add(content);
        }
        return goodsList;
    }
}
